Extension of UKCMER Core Research, Industry and International Engagement

波浪和潮汐能装置承受正常的日常负荷和异常的极端负荷。极端负载是严重的，而且不太频繁。波浪-装置相互作用或电流-叶片-结构相互作用产生的重复载荷较低，但在正常运行中频繁发生。在设备及其子系统的设计寿命期间，经济的设计必须能够承受这些类型的载荷的组合，而不会出现结构故障。波浪或湍流环境中的累积疲劳损伤可能比波浪或潮汐技术的预期寿命更早发生，需要更好地了解，以预测磨损或故障，并确保设计的坚固性，而不会带来过高的成本。这项工作将通过计算机建模进行数值探索，并通过初步的模型和海上测试进行物理探索，潮汐和波浪设备与周围海洋的相互作用，彼此，系泊和电力网络，以了解循环和不规则力的作用以及产生的结构载荷，最终旨在减少疲劳效应并提高可靠性。

Wave and tidal energy devices are subjected to normal everyday loadings and abnormal extreme loadings. Extreme loadings are severe and less frequent. The repetitive loadings arising from wave-device interaction or current-blade-structure interaction are lower and occur very frequently in normal operation. Economic designs that will survive have to withstand, without structural failure, a combination of these types of loading over the design life of the device and its subsystems. Cumulative fatigue damage in the wave or turbulent-current environment could occur earlier than anticipated in the life of wave or tidal current technologies and needs to be better understood to predict wear-out or failure and ensure designs are robust without entailing excessive cost. This work will explore numerically through computer modelling, and physically through preliminary model- and sea-testing, the interaction of tidal and wave devices with their sea that surrounds them, one another, their moorings and the electricity network to understand the cyclic and irregular forces acting and the structural loadings arising, ultimately aiming to reduce fatigue effects and increase reliability.